Adding a readonly toggle to query files/folders

I have some files that are in a readonly state, I also write a lot of one-off scripts, it would be nice to have the ability to "lock" a query file as readonly mode to prevent modifications. Sometimes I open postico and start editing and later realize I was editing one of my readonly scripts which can be annoying,

No files, tests, or entry points are named in the issue. Start by locating the query file and folder editing flow, then determine where a readonly toggle would be stored and exposed; done means a locked query cannot be modified in Postico while normal queries remain editable.

Written by the indexing model from the issue text.